| Name | Actinothyrium paraguayense Spegazzini |
| Authorship | Spegazzini |
| Rank | Species |
| Placed in | Actinothyrium |
| Citation | 1888 Anales Soc. Ci. Argent. 26: 67 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Actinothyrium paraguayense Spegazzini |
| Identification made in | [no date] (2) |